FR2114415A5 - Two stage cooler - for powder or granules uses dry steam followed by air - Google Patents

Two stage cooler - for powder or granules uses dry steam followed by air

Info

Publication number
FR2114415A5
FR2114415A5 FR7139152A FR7139152A FR2114415A5 FR 2114415 A5 FR2114415 A5 FR 2114415A5 FR 7139152 A FR7139152 A FR 7139152A FR 7139152 A FR7139152 A FR 7139152A FR 2114415 A5 FR2114415 A5 FR 2114415A5
Authority
FR
France
Prior art keywords
air
powder
dry steam
uses dry
stage cooler
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
FR7139152A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Venot Pic SA
Original Assignee
Venot Pic SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Venot Pic SA filed Critical Venot Pic SA
Priority to FR7139152A priority Critical patent/FR2114415A5/en
Application granted granted Critical
Publication of FR2114415A5 publication Critical patent/FR2114415A5/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
    • F28C3/00—Other direct-contact heat-exchange apparatus
    • F28C3/10—Other direct-contact heat-exchange apparatus one heat-exchange medium at least being a fluent solid, e.g. a particulate material
    • F28C3/12—Other direct-contact heat-exchange apparatus one heat-exchange medium at least being a fluent solid, e.g. a particulate material the heat-exchange medium being a particulate material and a gas, vapour, or liquid
    • F28C3/18—Other direct-contact heat-exchange apparatus one heat-exchange medium at least being a fluent solid, e.g. a particulate material the heat-exchange medium being a particulate material and a gas, vapour, or liquid the particulate material being contained in rotating drums
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D15/00—Handling or treating discharged material; Supports or receiving chambers therefor
    • F27D15/02—Cooling
    • F27D15/0206—Cooling with means to convey the charge
    • F27D15/028—Cooling with means to convey the charge comprising a rotary drum

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Formation And Processing Of Food Products (AREA)
  • Fertilizers (AREA)
  • Freezing, Cooling And Drying Of Foods (AREA)

Abstract

Cooling process comprises two successive stages, the first in the absence of air, using dry water vapour obtd. by sprinkling a controllable quantity of water onto the material, the second by sweeping cold air countercurrent over the material. The change-over from water vapour to air is at a temp. sufficiently high to avoid leaving moisture in the final product, but low enough so that the material does not react significantly with the air.
FR7139152A 1971-10-29 1971-10-29 Two stage cooler - for powder or granules uses dry steam followed by air Expired FR2114415A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7139152A FR2114415A5 (en) 1971-10-29 1971-10-29 Two stage cooler - for powder or granules uses dry steam followed by air

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7139152A FR2114415A5 (en) 1971-10-29 1971-10-29 Two stage cooler - for powder or granules uses dry steam followed by air

Publications (1)

Publication Number Publication Date
FR2114415A5 true FR2114415A5 (en) 1972-06-30

Family

ID=9085156

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7139152A Expired FR2114415A5 (en) 1971-10-29 1971-10-29 Two stage cooler - for powder or granules uses dry steam followed by air

Country Status (1)

Country Link
FR (1) FR2114415A5 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0372354A2 (en) * 1988-12-09 1990-06-13 Air Products And Chemicals, Inc. Tunnel freezer
CN104949537A (en) * 2015-07-22 2015-09-30 安徽工业大学 Direct absorption type product waste heat recovery system and method for granule calcination rotary kiln

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0372354A2 (en) * 1988-12-09 1990-06-13 Air Products And Chemicals, Inc. Tunnel freezer
EP0372354A3 (en) * 1988-12-09 1991-11-27 Air Products And Chemicals, Inc. Tunnel freezer
EP0519579A1 (en) * 1988-12-09 1992-12-23 Air Products And Chemicals, Inc. Tunnel freezer
EP0519578A1 (en) * 1988-12-09 1992-12-23 Air Products And Chemicals, Inc. Tunnel freezer
CN104949537A (en) * 2015-07-22 2015-09-30 安徽工业大学 Direct absorption type product waste heat recovery system and method for granule calcination rotary kiln

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Legal Events

Date Code Title Description
ST Notification of lapse